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Finding the Fourth Proportional to 436,782.71, 655,177.73 and 121,264.22

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Solution

The fourth proportional to 436,782.71, 655,177.73 and 121,264.22 is: 181,897.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,782.71 : 655,177.73 = 121,264.22 : x
  2. Step 2: Convert to fraction form
    436,782.71/655,177.73 = 121,264.22/x
  3. Step 3: Cross multiply
    436,782.71x = 655,177.73 × 121,264.22
  4. Step 4: Simplify right side
    436,782.71x = 79,449,612,507.61
  5. Step 5: Solve for x
    x = 79,449,612,507.61/436,782.71
  6. Step 6: Final answer
    x = 181,897.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.